Are you kidding? You really think a bye week, and resting players randomly out of some hope and prayer that it will give your players enough of an edge in the playoffs, is one and the same? One is a planned break, known well ahead of time, structured in a way to maximize both rest and preparation for the remainder of the season, the entire team on the same schedule. The other is short-term decision that a coach makes with the hope that his guys will have an advantage in their playoff performance, sacrificing continuity to be able to do so, often being a handful of guys here and there, but not the entire starting offense/defense. Unless the team is already one of the top-shelf teams in the league, it's almost always a regrettable decision. Middling teams like the Steelers benefit FAR more from continuing to play their ***** off like the season is on the line each week and staying well within their routines, than being given a single game of "rest" because by golly, once mason mccormick and isaac seumalo and patrick queen get that week off, look out rest of the AFC playoff teams, you're in for it now!
Pro athletes, like most people, prefer predictability, routine, not random changes to their week-to-week approach, especially when they're not hands-down the best at their craft in the league. One week is not enough to allow guys adequate time to heal their battered bodies enough to where it would make an appreciable difference. If anything, giving guys the week off after they've clinched the #1 seed, especially early, is more of a reward for their reg season accomplishment than some hope, wish and prayer that they come into the playoffs rejuvenated as if it's mid-September.

"Tons of books" on momentum, mad says! By experts on momentum, no doubt lol. Nobody cares about what Dr Joyce Brothers said 60 years ago in some irrelevant book which everyone has either forgotten about or never knew existed, professor. Tell the 2005 Steelers about how momentum is a myth. Tell the 2007 New York Giants about how momentum is a myth. You'd have to be a grade-A rube to buy into such a ridiculous notion. Did you just start watching football last month or something?